4 Rules for Position vs. Time GraphThe slope is equal to velocityIf linear, v is constant (i.e. no acceleration)If linear and horizontal the object is stationary (i.e. the speed is zero)If linear, horizontal, and along the x-axis, the object is stationary at the origin.If the graph is not linear, the object’s velocity is changing. (i.e. the object is accelerating) The slope of the tangent line is equal to instantaneous velocity.

5 Ex) Construct a graph of velocity vs. time.At time 0s, a car is at velocity 5.00m/sAt time 3.00s, the car is at velocity 23.0m/sAt time 6.00s, the car is at velocity 41.0m/s

7 Rules for Velocity vs. Time GraphThe slope is equal to acceleration.If linear, a is constant (i.e. constant acceleration)If linear and horizontal the object is not accelerating (i.e. the speed is constant)If linear, horizontal, and along the x-axis, the object is stationary.If the graph is not linear, the object’s acceleration is varying. The slope of the tangent line is equal to instantaneous acceleration.